Injury is damage to the body. This may be caused by accidents, falls, hits, weapons, and other causes.

Major trauma is injury that has the potential to cause prolonged disability or death.

In 2013 4.8 million people died from injuries up from 4.3 million in 1990. More than 30% of these deaths were transport related injuries. In 2013 367,000 children less than five died from injuries down from 766,000 in 1990. Injuries are the cause of 9% of all death and are the sixth leading cause of death in the world.